I am currently developing a laboratory for Walla Walla College that will study the interaction between fuel cells and batteries. I am interested in Panasonic EV's NiMH Prismatic Module because it is already being used in the Prius. In order to use these batteries as an example, I need to model them. This requires some information on their performance specifications. The information I need is: terminal voltage, internal resistance, and efficiency as a function of state of charge and temperature as well as state of charge as a function of temperature. Also, what charge configuration (constant voltage, constant current, or tapered) is recommended if any? I would appreciate any leads that would help me obtain this information. Thanks!
If you don't get any information here, I'd suggest trying a Yahoo auto group called "Prius_Technical_Stuff". Carl
http://www.peve.panasonic.co.jp/catalog/e_kaku.html This site is not exactly what you want, however I believe it is good place to start. Regards, Ken@Japan
Hi Ken: Do you know whether it is possibe to install/swap out the current Panasonic NiMh batteries in my new '05 Prius with a higher battery with a higher than the present 6.5Ah batteries without any modification to the electronics or software? Please Advise
Hi Ken, I don't know. Why don't you ask master Wayne Brown about it? http://privatenrg.com/#2004Ah%20work Ken@Japan
Ken: I went the to very incredible site in your post, however I could not find an email address or website for the Hon. Mr. Wayne Brown. I also did a search on PriusChat and it came up with no hits. Thanks, KenYOregon
Try this person he has tools to interrogate the CAN bus and I know at least some of that information is available on the CAN bus. http://www.vassfamily.net/ToyotaPrius/CAN/cindex.html He is very good at responding to email.
Oye! What code breaks thru yonder scanner window!!! Perhaps I'll start with the ScanGauge. Any other place to get a good deal on a ScanGauge than the Mfgr's website?
As Carl suggested on the #2 post of this thread, please visit the following Yahoo Group... http://autos.groups.yahoo.com/group/Prius_Technical_Stuff/ The target poster is "mwbueno" or Wayne Brown. Ken@Japan
The system is designed around the battery. If you change it, the control strategy won't work correctly; i.e., modifications you can't perform will be needed.
